/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/GroupEdgeInserter.h
Inserts an edge loop into a mesh, where an edge loop is a sequence of (group) edges across quads.
bool InsertEdgeLoops ( const [FEdgeLoopInsertionParams](API\Plugins\DynamicMesh\Operations\FGroupEdgeInserter\FEdgeLoopInsertionParams) & Params, [FOptionalOutputParams](API\Plugins\DynamicMesh\Operations\FGroupEdgeInserter\FOptionalOutputParams) OptionalOut, [FProgressCancel](API\Runtime\GeometryCore\Util\FProgressCancel) * Progress )